Improvement in forcing-pumps



NICHOLAS ,CL-UTE, OF scHENEcT-ADY, lNew YORK.

' Leners Poem No. 86,645, amd Fama/ry 53,1869.

IMPROVEMENT IN FORCING-PMPS.

2h Schedule referred to in these Letters Patentaand making part of thesame.

To all whom 'it m/y concern.-

Be it known that I, NICHOLAS OLUTE, of Schenectady, Schenectady county,State of New York, have in- 'appertaina to make and use my saidinvention or improvements without further invention or experiment.

The nature of` my invention and improvements consists in constructingand arranging the several'parts of a double-acting forcing-pump in sucha manner as to make it compact in form, cheap th make, and highlyeflicient in operation, said construction and arrangement beingparticularly set forth in the following description.

I n this specification l shall refer to the accompanying drawings,forming part of the same- Figure 1 being an elevatiop of one of myimproved Pumps; Figure 2, a sectional elevation of the upper portion ofthe pump, at the line az ou lig.-1;

Figure 3, a sectional elevation of the lower portion cut vat rightangles to the above section; and

' Figure 4, a horizontal section of one of the pistons. The'bottom ofthepump consists of a block, X, supporting and forming part of thepyramidal box A, perforated to receive the water, and surmounted by avalvechest, LB, which is dividedinto two separate parts, and providedwith the valves C and C'.

Upon this chest is secured, with suitable packing between, thepump-stock, consisting ofthe two conduits D and D', to correspond withythe two divisions of the chest B.r

Two opposite sides of this stock aremade cylindrical, hollowing inwardto receive the two pump-cylinders, E

i and E', which are secured to it, and may form a part ot' thecylindrical sides.

lThe cylinders and stock together are surmounted by the valve-chest E,provided with the two valves, G and G', opening respectively from thecylinders E 'and E'.

'lhe top of the chest F is made sufliciently capacious tovform theair-chamber H, the discharge-pipe I 'extending down through thischamber, and opening into the chest.

A pipe or jacket, O, surrounds the pipe I, to support or strengthen it,and to protect it from the cold, l

Thel cylinders E and E' are open at the bottom, and are each providedwith a solid piston, P and P', the rods of which extenddownward throughthe guides J and J', and have on them, between the guide andthecylinder, the cros s-heads, K and K', provided with the rods L andL', to which the moving or operating-power is to be applied.

The pistons, P and P', are provided with a packing, (see fig. 4,)consisting of the divided ring a, pressedV out bythe wedges b b, andacted upon by the springs c c, in the recesses d d; the wedges b bseparating the parts of the ling, and having their outer ends curved toconform to the outer surface of the ring, so as to form, themselves, aportion of the wearing-surface. As the wedges are exposed to wearequally with the ring, andare made of a softer metal, or one that. willwear more easily or faster than the ring, they will always keep up apressure, both against the ring and the cylinders, so as to make a tightpacking.

Operation.

The parts of the pump being properly secured together, and theperforated box A immersed in water,. areciprocating rectilinear motionmust be given tothe two pistons, by connecting the rods L and L' to the'opposite ends of a lever with equal arms, and pivoted in the middle, orby other suitable device, so that the rising of one piston may besimultaneous with the de scent of the other, and cioe versa, or the rodsL L' may be connected by a cross-head, so as to 'cause the two pistonsto rise and fall together.

Then, as each piston rises, the air above it and in the conduitconnecting with it, will be compressed, the conduit D opening at the topinto the cylinder E, and the conduit D' into the cylinder' E', and theair being prevented from escaping below by thelow'er valves,consequently a portion oi' it will escape, by its increased elastici'orce, through the valve aboveandvon the descent of the piston, thespace occupiedl by the remaining air being increased, its elastic forcewill be lessened, and the pressure of the air on the water outside, willcause a portion of it to rise through 'the lower valve to restore theequilibrium. This operation beingcontinuouslyrepeated, the water willsoon rise so as to How into the cistern from the couduit, on the descentof the piston, and be forced up through the upper valve, on its ascent,the pressure of the air withoutgcausing the water to rise and lfill the,cylinder above the piston, as. often asgit descends and forms a vacuum,or a partial vacuum, behind it.

1. I claim the combination, with the open cylinders E and E', of theconduits D andD, the valves C and C', and perforated box A, forsupplying water to the same, substantially as described. 1

2. I claim a piston-packing, consisting of a divided ring, a, pressedout by a wedge or wedges, b, of soft metal, acted 'upon by springs, saidwedges filling the space lbetween the separated parts of the ring, so asto form a. portion of the exterior or wearing-surface of i the packing,substantially as described.

NICHOLAS OLTUTE,4

' Witnesses: Lnwrs E. STANTON, 11R. SNATH.

